428997720
428,997,720 is an even composite number composed of six prime numbers multiplied together.
What does the number 428997720 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 128 divisors.
428997720 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 428997720:
23 × 3 × 5 × 17 × 113 × 1861
(2 × 2 × 2 × 3 × 5 × 17 × 113 × 1861)See below for interesting mathematical facts about the number 428997720 from the Numbermatics database.
Names of 428997720
- Cardinal: 428997720 can be written as Four hundred twenty-eight million, nine hundred ninety-seven thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 4.2899772 × 108
Factors of 428997720
Divisors of 428997720
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 17 20 24 30 34 40 51 60 68 85 102 113 120 136 170 204 226 255 339 340 408 452 510 565 678 680 904 1020 1130 1356 1695 1861 1921 2040 2260 2712 3390 3722 3842 4520 5583 5763 6780 7444 7684 9305 9605 11166 11526 13560 14888 15368 18610 19210 22332 23052 27915 28815 31637 37220 38420 44664 46104 55830 57630 63274 74440 76840 94911 111660 115260 126548 158185 189822 210293 223320 230520 253096 316370 379644 420586 474555 630879 632740 759288 841172 949110 1051465 1261758 1265480 1682344 1898220 2102930 2523516 3154395 3574981 3796440 4205860 5047032 6308790 7149962 8411720 10724943 12617580 14299924 17874905 21449886 25235160 28599848 35749810 42899772 53624715 71499620 85799544 107249430 142999240 214498860 428997720
- Sum of all divisors σ(n): 1375496640
- Sum of proper divisors (its aliquot sum) s(n): 946498920
- 428997720 is an abundant number, because the sum of its proper divisors (946498920) is greater than itself. Its abundance is 517501200
Bases of 428997720
- Binary: 110011001000111111100010110002
- Hexadecimal: 0x1991FC58
- Base-36: 73EWRC
Squares and roots of 428997720
- 428997720 squared (4289977202) is 184039043765198400
- 428997720 cubed (4289977203) is 78952330166250328947648000
-
The
square root of 428997720 is 20712.2601374161 -
The
cube root of 428997720 is 754.1973371055
Scales and comparisons
How big is 428997720?- 428,997,720 seconds is equal to 13 years, 33 weeks, 2 days, 6 hours, 2 minutes.
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To count from 1 to 428,997,720 would take you about twenty years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 428997720 cubic inches would be around 62.8 feet tall.
Recreational maths with 428997720
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